WSFM's main frequency is 101.7 MHz on the FM band, with two repeaters in the outer suburbs of Sydney: 88.3 MHz in the Macarthur region, and 99.1 MHz centred in the Richmond/Hawkesbury region. It previously transmitted on 1224 kHz on the AM band; this frequency is now used by print-handicapped radio station 2RPH.

Liverpool Broadcasting and Transmitting Co Pty Ltd was granted an AM radio license in the late 1970s, specifically to serve the Western Suburbs of Sydney. 2WS began broadcasting on 23 November 1978 from temporary studios in a relocated cottage at 2 Leabons Lane, Seven Hills with a 5 kW transmitter located at nearby Prospect.[citation needed][2]

The studios subsequently moved, in October 1979, into a purpose built complex behind the old cottage in Leabons Lane. The original building was demolished, with the material donated to charity.

In the early 90's the station was granted an FM licence covering the full Sydney metropolitan area. Its new transmitter site was located at Artarmon, in northern Sydney. The official callsign was changed to 2UUS (using a literal 'double-U' to compensate for the extra letter required), although the station still identified as 2WS until 2001, when they changed their on-air name to WSFM.

2WS, 1224 on the A.M. band converted to the FM band and began broadcasting as 2WS-FM on 101.7 MHz in 1993.

Jonesy & Amanda in the Morning is WSFM's flagship, and best known programme. Hosted by Amanda Keller and Brendan Jones the show is an informative and entertaining breakfast show. The show rates strongly in the baby boomer target market. News and weather is presented by Sarah Forster, sport with Jim Dolan and traffic with Vic Lorrusso. The show runs weekdays from 5:30-9am.

There is a daily "best of" program Jonesy and Amanda's Afternoon Delight which airs from 6-7pm weekdays

WS FM News claims to be "Sydney's most comprehensive FM News network". The bulletins are broadcast through the resources of ARN Group News, and uses ARN News anchors, but they present for WSFM solely. Renee Smith is the current news director as of 2011. She replaced Glenn Daniel. WSFM News has its own theme song. When a bulletin starts they cross straight to traffic.

Sarah Forster

Keegan Buzza

Melissa Seiler

Nehal Dalgliesh

Brooklyn Ross

Mia Agius

All other presenters present on weekends, fill-in on weekdays and report for ARN News.

Reporters include;

Cassandra Wood (politics)

Erin Rhone

Mark McKeown

Sports Anchors include;

Jim Dolan (5am-9am).

At other times sport is presented by the news anchor after the news.Weather is presented by both the news anchor and the traffic anchor.